准的
- 与 准的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This clearly indicates that the negative value of dρ/dT in CdYb QCs is mainly due to the quasiperiodicity because these QCs are stoichiomeric compounds with a very narrow single phase range. Positive dρ/dT and anomalously large MR reported previously are found to be due to the existence of free Cd in the samples.
这清楚地显示CdYb准晶的负电阻温度系数是由於准周期导致,因为CdYb准晶是一种单一相范围极窄的当量化合物,以前的研究说其具有正的dρ/dT和异常巨大的磁阻是由於样品中含有金属Cd。
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In this paper, according to the basic principle of light– ray propagation, the elliptic cylinder lenses have been designed and used to collimate the semiconductor laser beam. With the computer simulation by use of Matlab, the numerical results are given. The numerical results indicate that the divergence angle of the collimating beam could be as high as 0.1mrad.
在本文中,针对现在对半导体激光器准直的要求作者基于利用柱透镜对半导体激光器光束准直的理论分析,设计了利用椭圆面柱透镜对半导体激光器进行光束准直的方案,对半导体激光器发出的光束经过椭圆面柱透镜的光路进行计算,并且利用Matlab对方程进行求解及计算机模拟得到最终结果。
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The designed optical lens can collimate the light in vertical direction within plus/minus 5 degrees, while distribute the light energy uniformly in horizontal direction within 120 degrees.
基于侧准直原理和LED的光强分布特性,结合现有的二维准直表面和非成像光学二维形成给定光强分布表面的设计方法,设计了具有扩展功能的垂向准直、侧向120°内角向均匀分布的适用于航标灯的LED单元模块。
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During water quenching of meltten these alloys in fused silica tubes, the icosahedral quasicrystal solidified first, then the decagonal quasicrystal, and finally the crystalline approximants.
将成分为〓〓的合金放在抽真空的石英玻璃管中熔融后水淬,二十面体准晶首先形成,接着是十重对称准晶,最后形成的是准晶的晶体近似相。
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And an exact maximum likelihood registration algorithm is presented based on three-dimensional plane. This method contains two sets of partially separable variables (the actual target positions and the sensor registration errors) and provides a two-step recursive optimization algorithm to ensure fast convergence. Described by expressions:(5.26)?(5.39). It resolves the problems on Multiple-platform.
同时本文还推导出了三维立体投影的极大似然配准算法,算法包括两组部分可分的变量:实际目标位置和传感器的配准误差,利用两步递归优化算法对收敛速度进行了优化处理,实现过程可参阅式5.26~5.39,此算法解决了不同平台内多传感器配准过程中所存在的问题。
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The dependence of noncollinear angle and the corresponding grating periods on signal wavelength for satisfying quasi phase-matching and group velocity matching simultaneously of periodically poled RbTiOAsO4 in noncollinear quasi phase-matched have been carried out. The tuning characteristic of noncollinear interaction in group velocity matching situation has been analyzed.
研究了非共线准相位匹配过程中,周期极化 RbTiOAsO4晶体同时满足准相位匹配和群速匹配条件的非共线角和相应的极化周期随信号光波长的变化,同时分析了满足群速匹配条件时,非共线准相位匹配的调谐特性。
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During this period, variance contribution rate of quasi 100 ka cycle is up to 37.44%, and quasi 100 ka cycle has a leading role.
P。也发现地球轨道三要素中的偏心率准100 ka周期2、1 ka岁差周期及55 ka、8.3 ka、3.5 ka非轨道准周期,偏心率准100 ka周期具有主导地位(方差贡献率达37.44%);3尽管黄土记录的东亚夏季风100 ka周期的产生机制已有多种假说,古气候学界还是普遍认为它产生于某些尚不清楚的过程,有待进一步研究。
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objective to evaluate the clinical effect of high myopia treated with lasik by a small optical zones flying spot scanner machine.methods 364 cases (721 eyes) of high myopia were treated with lasik by the schwind esiris laser machine with small optical flying spot scanner.the ablation zone was single zone or multi zone.the ablation depth was range of 78~187μm.all cases were followed up for 3~12 months.the changes of their visual acuities,subjective manifest refraction and complications were observed.results postoperatively,at one day and 3 month the visual acuities were 1.0 or better in 72.0%(519/721) and 81.7%(589/721).the diopter within ±1.00 was 89.7%(647/721) and 90.7%(654/721)respectively.the complications include:decentral ablation 3 eyes (0.42%),decentral flap 5 eyes (0.69%),epithelial ingrowth 5 eyes(0.69%),glare 15 eyes(2.08%).conclusion the clinical effect of high myopia treated with lasik by a small optical zones flying-spot scanner machine was safety and efficacy,although it needs more corneal tissues.
目的 评价小光斑飞点扫描式准分子激光lasik治疗高度近视的效果。方法采用德国schwind esiris准分子激光机对364例(721眼)高度近视进行了lasik治疗。切削模式采用单区或多区切削,切削总量为78~187μm。随访3~12个月,观察术后视力、屈光度和并发症等情况。结果术后裸眼视力≥1.0者,术后1天、3个月时分别为72.0%(519/721)、81.7%(589/721);术后屈光度在±1.00d以内者,术后1天、3个月时分别为:89.7%(647/721)、90.7%(654/721)。主要的并发症有:偏中心切削3眼(0.42%)、瓣位置偏离5眼(0.69%)、角膜上皮植入5眼(0.69%)、眩光15眼(2.08%)。结论小光斑飞点扫描式准分子激光lasik治疗高度近视的临床效果安全有效,但是需要切削较多的角膜组织。
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Medical image registration is the first step of medical image fusion. Contour-based registration method is a good one for rigid-body images (such as: CT,MRI brain image).An image contour extraction method is presented in this paper.
摘 要 医学图像配准是医学图像融合的第一步,而基于图像边界的配准方法对刚性物体图像(如人头颅骨的CT、MRI图像)来讲是一种较好的配准方法。
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Medical image registration is the first step of medical image fusion. Contour-based registration method is a good one for rigid-body images (such as: CT,MRI brain image).
摘 要 医学图像配准是医学图像融合的第一步,而基于图像边界的配准方法对刚性物体图像(如人头颅骨的CT、MRI图像)来讲是一种较好的配准方法。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。